Electromagnetic pump



m which the cycles of applied alternating cur? by e arrows.'

Feb.` 9; l, i

, l' uNirEnsri-rs- PATsNr ori-'ics anni a. La reinen. or commencer, Assioma ro neuem-oir 1 or iranrronn, .comin-rim Y 'mnonemro rm appnmuen'iiea January ,fiesi. Serin' ire; 507,41?.

' This invention relates to electromagnetic outer ends ofthe nlungers 16 extend into T .4 vBeumps of the ty disclosed in United tates connections-17, threadedly en aged with the tters Patent o. 1,790,547 granted to f me. .externally threaded ends of tie cylinder 10 Itis among the prime objects o f the pres- 'as at 18. Within the T connections 17, the '5 ent invention to provide an electromagnetic outer ends of the tubularplungers 16 are 55 p ump operable by alternating .current .enerprovidedfwith magnetic heads 19. The side gization.

.' A-/fnrther object of the present invention provided with inlet and out et i respecis to provide lan electromagneticpump in `tival the direction of liowbeii'ieisiidicated rent will provide for responsive reciproca- A For disassemb the puin'l `'the magnetic us' the heads 19 are renlildlbly assoc'ii ted with the Y tions ofthe um plunger, th i Y necessity o uti 'zing a circuitjfaker-andtubular plungers 16l by removable pins 20. breaker in connection with thepuiiip. The assembly is retained in resiliently bali .p go intcurrent as the invention shown 1n i 1 the magnetic positioned the tylinder side of thgeitip no endsof w ichabnt tub ar plungers 16. The Vi'ietic field thro 15' A further obJect of the present invention anced position by terminal si'prings 21 which i is to provide an alternating curnent-electroare seated within `recesses o removable termagnetic ump'includin a pair of plungers mlnal plugs 22 of tliepTs 17, the arrangei respective y movable under theiniiuence of ment being `such that the plungers are arvariations in the cycle of applied alternatranged for respective niovementlagainst the nsion vof the balancing springs which in- 70 her objects of the resent invention are clude the central spring 15, whereb reciproto provide anovel, simp e and'improved concation of the plungers'i's provid to cause struction particularlyadapted to meet the the IOW Ofliquid therethrough. BOth 0f the' demands of economic manufacture. 'plungers are provided with simple check 25 Numerous other objects and features'of valves 23 positioned within extensions of 75 t e present'iiivention will apparent from' their bores at the upper end, the arrangeular pl rs. For providing opposite magnetic elds for so 1 is a vertical sectional view il1l1s the upper and lower magnetic heads, permao trating one form of the present invention, nent magnets are positioned externally of the section being. taken as illustrated on the the lp uinp, the like po es of thema ets be line 1-1 of-Fi 2;4 Positioned on either side Fig. 2 is asi e elevaion ofthat form of a strong ma e 'inore'partic arly to the drawshown as i y ings, theform of the invention therein illus- They may, however, Ytinted by -way of4 illustration includes a electric'wind if central cylinder 10 about which is ceiit1a1-A are sup Ifted 1n the al to shown).

. 10, an ansion sprin 15 is provi ed, the are ari-an As shown by the dotted lines in Eigure' 2 the construction may be as here shown with it will be seen that the ends of the poles of one of the plungers locked against movement the permanent magnets are in line with the through the influence of the varying current outer ends of the heads 19, thus the heads 19 applied.

5 will form corresponding magnets by mag In connection with the present invention, I0 netic induction whereby the inner end of the it will readilybe understood that the invenupper head 19 will constitute anorth pole and tion is not specifically confined to the structhe inner end of the lower head 19 will contural details herein presented. Various stitute a south pole. changes, modifications and the full use of i In the operation of the device alternating equivalents may be resorted to; thus the par- 75 current'is supplied through the binding posts ticular structural assembly, the use 0 13 to provide alternating current through the springs, and the use of permanent magnets electromagnet windings 11, thus, by virtue may be altered without departing from the of the windings the cylinder 10 will be magspirit or scope of the present invention as i netized in accordance with cycles of the apoutlined in the appended claims. 80

plied current so that for instance, when the What is claimed is; cycle is positive the upper end of the cylinder 1. An electromagnetic pump, including a will be Jr'ormed into a north pole, thus recylinder, alternating current electroma etic peiling the upper head 19, the lowerend 0f. windings associated with' said cylin er, a

zo which is maintained as a north pole through tubular plunger mounted within said cylinder 85 its relationship t0 north poles 0f the magnets for attraction and repulsion in response bo 24. Simultaneously therewith, the lOWeI variations of the cycle of energization of said head 19 Will he repulsed due t0 the fat that windings, and magnetic means 0n said the positive cycle has iormedthe lower en plunger for attraction and repulsion by the 9.5 of the cylinder 10 into a southpole. Both energization of said windings. 99 plungers are thus simultaneously repulsed 2. An electromagnetic pump, including a and move outwardly against the tension 0f cylinder, alternating current electromagnetic the springs 21. Upon reversal of the current windings associated with said cylinder, and cycle the upper and lower ends of the cylina tubular plunger mounted within said cylinder 10 are formed into south and north poles der for attaction and repulsion in response 95 respectively, thus attracting the heads 19 Ito variations of the cycle of energization of which move together against the tension of said windings, said plunger having a magthe central spring l5. By this Simultaneous netic head mounted externally of said cylinreciprocation of the plungers 16 1t will be der for attractionand repulsion by the energiseen that the liquid is, upon outward movezation of said windings. ment oi the plungers, forced past the valve 3, Ari electromagnetic pump, including a 23 of the lower plunger, and upon inward cylinder, alternating current electromagnetic movement of the plungers the liquid is forced windings associated with Said cylinder, an past theupper v alve Q3. Liquid from the a tubular plunger mounted within saidcylin- 4o Supply P1P@ aSSOClated with the lOWeI T Will der for attraction and repulsion in response 105 thug be caused to iow upwardly through the to variations of the cycle of energization of lower tubular plunger and therefrom said windings, said plunger having a magthrough the upper plunger and through the netic head mounted externally of said cylinvalve of the upper plunger t0 the Outlet 3S.- der for attraction and repulsion by the enersoclated Wlth the upper T- gizauon 0f Said windings, Said head being re- 11 BY the PTOVlSlOD 0f the spfmgs 21 and 15 tained at a single magnetic polarization. 1t Wm be`seen.t.the tubula members arg 4. An electromagnetic pump, including a lrnlytretm mtalalle $053510 an t cylinder, alternating current electromagnetic .a uc a 1.0 o 6.a ema. mf cumin windings associated with said cylinder, a 5o will at all times provide their respective t b l 1 u t d .th. .d 1. d

simultaneous movement. It is obvious that fu u Kp lpber mun 'e ,w1 l? sal cy m er it is within the scope of the present invention Gr.21 '.rac lo an rep S10 l. rsponse '.60 that both the upper and lower tubular mem- Vilnailons of the cycle .of enellglza'tion of Smf] bers be formed by an intergral construction. Wmdmgsv sind plunger havufg a I nagnetlc It has been found, however, that the intelhead in ounted externally of said cylinder lfor 120 mediate spring 15 provides balancing bettlatlm im@ 'ePllSlm by th? energ}Zat10n tween the movements, thus to compensate of Said windings, said head being retained at for variations in the pressure of the iiuid at a single magnetic polarization, and meansfor the admission pipe and at the discharge pipe. providing a magnetic field Jfor said head to It is also within the scope of the invention to retain it at said polarization. 125 provide only a single plunger. Both valves 5. An electromagnetic pump, including a may be carried thereby or a -simple fixed cylinder, alternating current electromagnetic valve cage `will be provided in place of the windings associated with said cylinder, a separate valved plunger as shown in the form tubular plunger mounted within said cylinder of the invention here presented or, if desired, for attraction and repulsion in response to 130 cylinder,

i magnetic potenti-als by the a magnetic cylinder for energization g retained at and means or said head for providing a magnetic Afield polarization, said means to retain it at said `comprising a pair-.of magnets having like polarized ends on either si An e ectromagnetic pump, alternatin e of said head.

g a current electromagnetic wind with said cylinder,

h and a'check valve forcontrolling passage, and oppositely said plungers, whereb windings wi l repuls'e said heads, whereby recipding therefrom, each of said passage extending therech ck valve for said passage, and `vo bein maintained at o osite g PP provision of means fioilubjecting said heads to opposite magnetic b 8.. An electromagnetic pump, including a cylinder, alternating current electromagnetic ings associated with said cylinder, a pair v y within said cylinder and 9 An electromagnetic pump, lincluding a cylinder, alternating current electromagnetic ings associated with said cylinder, a pair o plungers mounted within said cylinder and extending therefrom each o'f aving a passage extending therethrough and a check valve f oppositely magnetized o b, J heads respectively on said plungers,

whereby opposite energizatio'n magnetized th h externally threaded y with said y plungers extending o said pl of said windings will attract and re y heads, whereby reciprocations of said plun r is provided, said plungers being maintaine opposite magnetic potentials by th of means for subjecting said heads to opposite magnetic fields, sai means including mag-Y with hin said Ts,

and for opposite attraction and repulsion upon negative energiwhereby the alternatment o said p ungers'within said cylinder. v

11. neleetromagnetic cylinder, alternating cui'- rent electromagnetic windings associated cylinder, Ts threadedly associated with the terminal ends, of said passage extending therethroug valve for controlling said passage, external terminal ends eing positioned Within said Ts, said plung-l ers and attraction by positive energization of or vopposite attraction rent electromagnetic y associated with the terminal en ds of saidcylinder, plungers for controlling said passage, the external terminal ends being positioned within said Ts, said plungers bc- Justable means supportingjf ffect vertical movepump, including an including an externally threaded cylinder, alternating cur-. l

windings associated with g' said cylinder, Ts threadedl ulsesaid epro'vision saidv and repulsion upon negative energization of said windings, whereby the alternating eurfrent cycle will eiect vertical movement o said plungers within said cylinders, .said

magnetic plungers including magnetic heads within said Ts, and means for retaining said heads at op osite magnetic potential, said means inclu ing a pair of fixed magnets carried by said Ts, like poles mounted on either side of said heads.

14. An electromagnetic pump an externally threaded cylinder, alternatin current electromagnetic windings associate with said cylinder, Ts threadedly associated with the terminal ends of said cylinder, plungers extending within said cylinder, their external terminal ends being positioned within said Ts, said plungers being arranged for respective repulsion and attraction by positive energization of said windings and for opposite respective attraction and repulv sion upon negative energization of said windings, whereby the alternating current cycle will efect vertical movement of said plungers within said cylinder, said plungers including eads within said Ts, means for rotating said heads at opposite magnetic potential, said means including a pair of xed gnets carried by said Ts, like poles of said magnets being mounted on eitherside of said heads, and valves mounted within the upper ends of said plungers, both O said valves be# ing arrange to permit movement of Huid therethrough in one direction and to prevent opposite iiow of fluid.

15. A n electromagnetic pump, including an externally threaded cylinder, alternating current electromagnetic windings associated with said cylinder, Ts threadedly associated with the terminal ends of said cylinder, plungers extending within said cylinder, their external terminal ends being positione within said Ts, said plungers being arranged for respective repu sion and attraction by positive energization of said windings an for opposite respective attraction and repul-- sion upon negative energization of said windings, whereby the alternating current cycle will eiect vertical movement of saidplungers within said cylinder, said plungers including d of said heads,

of said magnets being` magnetic heads within said Ts, means for retainin said heads at opposite magnetic otentia said means includin a pair o xed magnets carried by said T s, like poles of said magnets being mounted on either side valves mounted within the upper ends of said plungers, both o said valves being arranged to permit movement of fluid therethrough in one direction and. to prevent opposite ow of fluid, and spring balancing means associated with said plungers for permitting respective movement thereo against the tension of said balancing means.

ALBERT A. LA POINTE.

, including 

